[WARC] need person with 70. cm. rcv for test

[jonmcpete at cpinternet.com]

Great.  As long as I can get a strong enough signal that you
can get it to show up on some indicator like an S-meter on
your receiver over that distance with a few watts.  Will use
higher power for full functioning ATV but for now will have
to carry everything up the tower to each point!  Would like
to try this evening sometime just to see if can get into
Onalaska with a few watts FM voice.  The Wabasha 2 m.
repeater at 100 W. is tough for you to rcv. even though
isn't it?
Jon, wa0unb  

> Maybe send out an email as to expected times and
> frequencies.. I have a vertical on 440 and atv receiver
> here in Onalaska,, en43 ofcourse.... I could be of some
> help.
> 
> 73,
> 
>  Dave, WV9E
> 
> 
>   ----- Original Message ----- 
>   From: jonmcpete at cpinternet.com 
>   To: warc at lists.w0ne.org 
>   Cc: jrwise at hbci.com ; w0stv at arrl.net 
>   Sent: Sunday, August 23, 2009 8:00 PM
>   Subject: [WARC] need person with 70. cm. rcv for test 
> 
> 
>   I have all the parts finally for the ATV repeater.  Want
> to
>   test each part to be sure the total IS equal to the sum
> of
>   the parts otherwise it is difficult to assess whether
> you
>   are really getting out of it what you would "expect" as
> few
>   other such machines in the area to compare with. 
>   Actually....none.
>   What I need is a person or two (more OK) who can be
>   available now and then to compare signal strengths as I
> swap
>   among three antennas, three feed lines, at three
> different
>   heights.  NO, NOT ALL 27 COMBINATIONS !!!!  The tests
> for
>   this part will just use FM voice on one of the ATV
>   frequencies.  443.750 MHz would probably be good.  NO
> ATV
>   equipment is needed.  What would be IDEAL would be
>   someone(s) with a simple VERTICAL 70. cm. antenna. 
> Beams
>   might be a nuisance because of the need to always set
> them
>   back to the same bearing.  The idea is that I transmit a
>   fixed power carrier and the receiving station notes the
>   signal strength (any type of "S-meter" reading is fine,
>   doesn't need to be calibrated).  When I switch to
> another
>   antenna, feedline, height, etc. we coordinate (on
> another or
>   the same frequency) and see how much I need to attenuate
> the
>   signal on my end to get the same reading on your
> "S-meter." 
>   I can always measure gain/loss for the transmitter power
> and
>   the feedline by other means but am very curious how much
> the
>   height affects this and whether the antennas really meet
>   their spec.s.  Picked up a DB-420 antenna at Dayton (16
>   "folded dipole" array) but is used and want to actually
>   assess it.  Will compare with two other fiberglass
> "sticks".
>    Would like to check out tonight a few things to see
> just
>   what power level will be needed to accomplish these
> goals. 
>   FM voice is plenty adequate for these first
>   measurements...plus I don't feel like carrying a video
> and
>   audio source, transmitter, amp., bird meter, lead
> gel-cell,
>   and batch of attenuators to the top of the tower too
> many
>   times if I can calculate whether it is performing up to
>   snuff from these tests.   jon wa0unb
> 
>   Jon Peterson wa0unb
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> 
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Jon Peterson wa0unb